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re #13879 make libsqlite a real shared lib (tweaks)
  Fix rebuild after pull (remove files left in the way)
  Make sqlite.h SQLITE_VERSION more predictable.
OS-5 Integrate virtio drivers
    integration cleanup (copyrights, cddl 1.0)
port of illumos-1562
    1562 Integrate the virtio core module
    Reviewed by: Dmitry Yusupov <Dmitry.Yusupov@nexenta.com>
    Reviewed by: Gordon Ross <gordon.w.ross@gmail.com>
    Approved by: Garrett D'Amore <garrett@damore.org>
    
      
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          --- old/usr/src/uts/common/io/virtio/virtioreg.h
          +++ new/usr/src/uts/common/io/virtio/virtioreg.h
   1    1  /*
   2    2   * Copyright (c) 2010 Minoura Makoto.
   3      - * Copyright (c) 2012 Nexenta Systems, Inc.
   4      - * All rights reserved.
   5    3   *
   6    4   * Redistribution and use in source and binary forms, with or without
   7    5   * modification, are permitted provided that the following conditions
   8    6   * are met:
   9    7   * 1. Redistributions of source code must retain the above copyright
  10    8   *    notice, this list of conditions and the following disclaimer.
  11    9   * 2. Redistributions in binary form must reproduce the above copyright
  12   10   *    notice, this list of conditions and the following disclaimer in the
  13   11   *    documentation and/or other materials provided with the distribution.
  14   12   *
  15   13   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  16   14   * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  17   15   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  18   16   * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  19   17   * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  20   18   * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  21   19   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  22   20   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  23   21   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  24   22   * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25   23   */
  26   24  
  27   25  /*
  28   26   * Part of the file derived from `Virtio PCI Card Specification v0.8.6 DRAFT'
  29   27   * Appendix A.
  30   28   */
  31   29  
  32   30  /*
  33   31   * An interface for efficient virtio implementation.
  34   32   *
  35   33   * This header is BSD licensed so anyone can use the definitions
  36   34   * to implement compatible drivers/servers.
  37   35   *
  38   36   * Copyright 2007, 2009, IBM Corporation
  39   37   * All rights reserved.
  40   38   *
  41   39   * Redistribution and use in source and binary forms, with or without
  42   40   * modification, are permitted provided that the following conditions
  43   41   * are met:
  44   42   * 1. Redistributions of source code must retain the above copyright
  45   43   *    notice, this list of conditions and the following disclaimer.
  46   44   * 2. Redistributions in binary form must reproduce the above copyright
  47   45   *    notice, this list of conditions and the following disclaimer in the
  48   46   *    documentation and/or other materials provided with the distribution.
  49   47   * 3. Neither the name of IBM nor the names of its contributors
  50   48   *    may be used to endorse or promote products derived from this software
  51   49   *    without specific prior written permission.
  52   50   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  53   51   * ``AS IS'' ANDANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  54   52   * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  
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  55   53   * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL IBM OR CONTRIBUTORS BE LIABLE
  56   54   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  57   55   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  58   56   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  59   57   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  60   58   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  61   59   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  62   60   * SUCH DAMAGE.
  63   61   */
  64   62  
       63 +/*
       64 + * Copyright 2012 Nexenta Systems, Inc.  All rights reserved.
       65 + */
  65   66  
  66   67  #ifndef __VIRTIOREG_H__
  67   68  #define __VIRTIOREG_H__
  68   69  
  69   70  #include <sys/types.h>
  70   71  
  71   72  #define PCI_VENDOR_QUMRANET 0x1af4
  72   73  #define PCI_DEV_VIRTIO_MIN 0x1000
  73   74  #define PCI_DEV_VIRTIO_MAX 0x103f
  74   75  #define VIRTIO_PCI_ABI_VERSION 0
  75   76  
  76   77  /* Virtio product id (subsystem) */
  77   78  #define PCI_PRODUCT_VIRTIO_NETWORK      1
  78   79  #define PCI_PRODUCT_VIRTIO_BLOCK        2
  79   80  #define PCI_PRODUCT_VIRTIO_CONSOLE      3
  80   81  #define PCI_PRODUCT_VIRTIO_ENTROPY      4
  81   82  #define PCI_PRODUCT_VIRTIO_BALLOON      5
  82   83  #define PCI_PRODUCT_VIRTIO_9P           9
  83   84  
  84   85  /* Virtio header */
  85   86  #define VIRTIO_CONFIG_DEVICE_FEATURES           0 /* 32bit */
  86   87  #define VIRTIO_CONFIG_GUEST_FEATURES            4 /* 32bit */
  87   88  
  88   89  #define VIRTIO_F_NOTIFY_ON_EMPTY                (1<<24)
  89   90  #define VIRTIO_F_RING_INDIRECT_DESC             (1<<28)
  90   91  #define VIRTIO_F_BAD_FEATURE                    (1<<30)
  91   92  
  92   93  #define VIRTIO_CONFIG_QUEUE_ADDRESS             8 /* 32bit */
  93   94  #define VIRTIO_CONFIG_QUEUE_SIZE                12 /* 16bit */
  94   95  #define VIRTIO_CONFIG_QUEUE_SELECT              14 /* 16bit */
  95   96  #define VIRTIO_CONFIG_QUEUE_NOTIFY              16 /* 16bit */
  96   97  #define VIRTIO_CONFIG_DEVICE_STATUS             18 /* 8bit */
  97   98  
  98   99  #define VIRTIO_CONFIG_DEVICE_STATUS_RESET       0
  99  100  #define VIRTIO_CONFIG_DEVICE_STATUS_ACK         1
 100  101  #define VIRTIO_CONFIG_DEVICE_STATUS_DRIVER      2
 101  102  #define VIRTIO_CONFIG_DEVICE_STATUS_DRIVER_OK   4
 102  103  #define VIRTIO_CONFIG_DEVICE_STATUS_FAILED      128
 103  104  
 104  105  #define VIRTIO_CONFIG_ISR_STATUS                19 /* 8bit */
 105  106  #define VIRTIO_CONFIG_ISR_CONFIG_CHANGE         2
 106  107  
 107  108  #define VIRTIO_CONFIG_CONFIG_VECTOR             20 /* 16bit, optional */
 108  109  #define VIRTIO_CONFIG_QUEUE_VECTOR              22
 109  110  
 110  111  #define VIRTIO_CONFIG_DEVICE_CONFIG_NOMSIX      20
 111  112  #define VIRTIO_CONFIG_DEVICE_CONFIG_MSIX        24
 112  113  
 113  114  #define VIRTIO_MSI_NO_VECTOR 0xffff
 114  115  
 115  116  /* Virtqueue */
 116  117  /* This marks a buffer as continuing via the next field. */
 117  118  #define VRING_DESC_F_NEXT       1
 118  119  /*
 119  120   * This marks a buffer as write-only, from the devices's perspective.
 120  121   * (otherwise read-only).
 121  122   */
 122  123  #define VRING_DESC_F_WRITE      2
 123  124  /* This means the buffer contains a list of buffer descriptors. */
 124  125  #define VRING_DESC_F_INDIRECT   4
 125  126  
 126  127  /*
 127  128   * The Host uses this in used->flags to advise the Guest: don't kick me
 128  129   * when you add a buffer.  It's unreliable, so it's simply an
 129  130   * optimization.  Guest will still kick if it's out of buffers.
 130  131   */
 131  132  #define VRING_USED_F_NO_NOTIFY  1
 132  133  /*
 133  134   *  The Guest uses this in avail->flags to advise the Host: don't
 134  135   * interrupt me when you consume a buffer.  It's unreliable, so it's
 135  136   * simply an optimization.
 136  137   */
 137  138  #define VRING_AVAIL_F_NO_INTERRUPT      1
 138  139  
 139  140  /*
 140  141   * Virtio ring descriptors: 16 bytes.
 141  142   * These can chain together via "next".
 142  143   */
 143  144  struct vring_desc {
 144  145          /* Address (guest-physical). */
 145  146          uint64_t addr;
 146  147          /* Length. */
 147  148          uint32_t len;
 148  149          /* The flags as indicated above. */
 149  150          uint16_t flags;
 150  151          /* We chain unused descriptors via this, too */
 151  152          uint16_t next;
 152  153  } __attribute__((packed));
 153  154  
 154  155  struct vring_avail {
 155  156          uint16_t flags;
 156  157          uint16_t idx;
 157  158          uint16_t ring[];
 158  159  } __attribute__((packed));
 159  160  
 160  161  /* u32 is used here for ids for padding reasons. */
 161  162  struct vring_used_elem {
 162  163          /* Index of start of used descriptor chain. */
 163  164          uint32_t id;
 164  165          /* Total length of the descriptor chain which was written to. */
 165  166          uint32_t len;
 166  167  } __attribute__((packed));
 167  168  
 168  169  struct vring_used {
 169  170          uint16_t flags;
 170  171          uint16_t idx;
 171  172          struct vring_used_elem ring[];
 172  173  } __attribute__((packed));
 173  174  
 174  175  
 175  176  /* Got nothing to do with the system page size, just a confusing name. */
 176  177  #define VIRTIO_PAGE_SIZE        (4096)
 177  178  
 178  179  #endif /* __VIRTIOREG_H__ */
  
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